Can I destroy this recording since it's no longer needed?

He stood up to put on his new belt.

My grandfather underwent cataract surgery.

He, who holds a PhD in science, is working as a professor of physics.

I live in Zibo city.

I'm looking forward to wearing new shoes.

He is peeling the apple.

What is in this box?

His plan collapsed like a collapse.

He did his best to seize the opportunity.